Examples with CarbonDataSource org.wso2.carbon.ndatasource.core.CarbonDataSource used on opensource projects

Example 1 with CarbonDataSource

use of org.wso2.carbon.ndatasource.core.CarbonDataSource in project jaggery by wso2.

the class DatabaseHostObject method jsConstructor.

public static Scriptable jsConstructor(Context cx, Object[] args, Function ctorObj, boolean inNewExpr) throws ScriptException {
    int argsCount = args.length;
    DatabaseHostObject db = new DatabaseHostObject();
    // args count 1 for dataSource name
    if (argsCount != 1 && argsCount != 3 && argsCount != 4) {
        HostObjectUtil.invalidNumberOfArgs(hostObjectName, hostObjectName, argsCount, true);
    }
    if (!(args[0] instanceof String)) {
        HostObjectUtil.invalidArgsError(hostObjectName, hostObjectName, "1", "string", args[0], true);
    }
    if (argsCount == 1) {
        String dataSourceName = (String) args[0];
        DataSourceManager dataSourceManager = new DataSourceManager();
        try {
            CarbonDataSource carbonDataSource = dataSourceManager.getInstance().getDataSourceRepository().getDataSource(dataSourceName);
            DataSource dataSource = (DataSource) carbonDataSource.getDSObject();
            db.conn = dataSource.getConnection();
            db.context = cx;
            return db;
        } catch (DataSourceException e) {
            log.error("Failed to access datasource " + dataSourceName, e);
        } catch (SQLException e) {
            log.error("Failed to get connection", e);
        }
    }
    if (!(args[1] instanceof String)) {
        HostObjectUtil.invalidArgsError(hostObjectName, hostObjectName, "2", "string", args[1], true);
    }
    if (!(args[2] instanceof String) && !(args[2] instanceof Integer)) {
        HostObjectUtil.invalidArgsError(hostObjectName, hostObjectName, "3", "string", args[2], true);
    }
    NativeObject configs = null;
    if (argsCount == 4) {
        if (!(args[3] instanceof NativeObject)) {
            HostObjectUtil.invalidArgsError(hostObjectName, hostObjectName, "4", "object", args[3], true);
        }
        configs = (NativeObject) args[3];
    }
    String dbUrl = (String) args[0];
    RDBMSConfiguration rdbmsConfig = new RDBMSConfiguration();
    try {
        if (configs != null) {
            Gson gson = new Gson();
            rdbmsConfig = gson.fromJson(HostObjectUtil.serializeJSON(configs), RDBMSConfiguration.class);
        }
        if (rdbmsConfig.getDriverClassName() == null || rdbmsConfig.getDriverClassName().equals("")) {
            rdbmsConfig.setDriverClassName(getDriverClassName(dbUrl));
        }
        rdbmsConfig.setUsername((String) args[1]);
        rdbmsConfig.setPassword((String) args[2]);
        rdbmsConfig.setUrl(dbUrl);
        try {
            rdbmsDataSource = new RDBMSDataSource(rdbmsConfig);
        } catch (DataSourceException e) {
            throw new ScriptException(e);
        }
        db.conn = rdbmsDataSource.getDataSource().getConnection();
        db.context = cx;
        return db;
    } catch (SQLException e) {
        String msg = "Error connecting to the database : " + dbUrl;
        log.warn(msg, e);
        throw new ScriptException(msg, e);
    }
}